E PR 0.25 *5.758 1.1998V (the voltage on sensor) Current through thermistor = 1.1998V/5758Ω = 208µA Voltage needed in pullup = 5V-1.2V=3.8V Resistance needed in pullup = 3.8V/208µA=18.269kΩ Then, the pullup resistor R1=18.3 kΩ Exercises - Solutions 7 c) Assume R1 is selected as 22 kΩ. Plot the output voltage V0 against temperature. In this case, assum V1=V0 Rth V0 =V1 5V R1 Rth T0 Rth R1 V1=V0 -10°C 44.6 kΩ 22 kΩ 3.35Volt 0°C 28.1 kΩ 22 kΩ 2.80 Volt 10°C 18.2 kΩ 22 kΩ 2.26 Volt
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response code A code sent with the response to a data transmission that specifies how the transmitted data was processed. 170 Glossary response format A format specifying the data required in a response to a data transmission. response monitoring time The time a device will wait for a response to a data transmission before assum- ing that an error has occurred. Restart Bit A bit used to restart part of a PC. result word A word used to hold the results from the execution of an instruction. retrieve The processes of copying data either from an external device or from a storage area to an active portion of the system such as a display buffer. Also, an output
” Be absolutely clear about your answer to this question. Whenever you experience any frustration or resistance in achieving a goal or getting a result, ask yourself, “How am I trying to do it?” and “Could there be a better way?” Don’t fall in love with your current methods. What are your assumptions? What are your obvious assumptions and what are your unconscious assumptions? What are you assum- ing to be true that if it were not true, your thinking would change altogether? Alex McKenzie wrote, “Errant assumptions lie at the root of every failure.” ■ THE REAL PROBLEM I often work with companies that are trying to market a new prod- uct or service and they are having difficulties in the marketplace. When we seek the reasons for their business problems, they usually